671275395 has 48 divisors (see below), whose sum is σ = 1372680192. Its totient is φ = 296965440.

The previous prime is 671275387. The next prime is 671275439. The reversal of 671275395 is 593572176.

It is not a de Polignac number, because 671275395 - 2³ = 671275387 is a prime.

It is a super-2 number, since 2×671275395² = 901221311864812050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 671275395.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24607 + ... + 44136.

It is an arithmetic number, because the mean of its divisors is an integer number (28597504).

Almost surely, 2^671275395 is an apocalyptic number.

671275395 is an abundant number, since it is smaller than the sum of its proper divisors (701404797).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

671275395 is a wasteful number, since it uses less digits than its factorization.

671275395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68792 (or 68789 counting only the distinct ones).

The product of its digits is 396900, while the sum is 45.

The square root of 671275395 is about 25908.9829016888. The cubic root of 671275395 is about 875.5888911955.

The spelling of 671275395 in words is "six hundred seventy-one million, two hundred seventy-five thousand, three hundred ninety-five".